• Journal of Information Technology Services
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• v.17 no.1
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• pp.135-153
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• 2018

E-Card Service for Child Nutrition Program is one of the main public policy services nowadays. In case of inconvenience during the use of the e-cards, it is recommended to cooperate with related organizations in order to promptly handle and provide guidance, and thoroughly manage child feeding service such as hygiene, nutrition and kindness etc. To do so, it is very important to provide food service that meets local actual conditions and children's needs in a cost effective manner for the underage who are worried about the poorly-fed by understanding the pattern of child feeding e-card service. Hence. this paper aims to investigate how child feeding e-card service efficiently provides meals according to the local situation and children's needs through big data analysis and to propose a method of identifying welfare conditions according to the purpose of service with actual application examples. The results suggest that, first of all, this study is able to judge appropriateness of public institution's policy in a timely and repetitive manner through non-standard data analysis such as Naver News and transaction data. Secondly, this paper proposes a multi-layered analysis framework, which performs online open data analysis to detect policy issues, visualizes retrieval and preprocessing of real data, and performs abnormal pattern recognition. These will be worthy of reference to other similar projects.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.50
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• pp.277-308
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• 2011

Korea's economy has shown recovery since the global financial crisis in 2008. In the year 2010, Korea's export volume reached US D 467.4 billion and Korea is one of the main producer of IT equipment, electronics, ship-buildings, chemicals and automobiles. In particular, IT industry is one of the largest portion in Korea's export industries. The reason of the performance is that we develop innovative products to overseas markets and continued it. Also, there has been export support or promotion scheme in Korea. In this study, We need to evaluate the current system of export support and derive future challenges. This article has been studied to investigate relationship between export promotion and export performance. So, We classify export promotion program into 7 group(IT package, Market pioneers, Overseas exhibition, consultation invited buyers, International IT market research, Small Business IT export counseling center, Overseas marketing online) and the export performance was considered as the dependent variable. So the result are as follows. Factors on IT package, Market pioneers, overseas exhibition, International IT market research have been identified as influencing. and consultation invited buyers, Small Business IT export counseling center and Overseas marketing online have been identified as unimportant factor. So, We have to develop those Factors(IT package, Market pioneers, overseas exhibition, International IT market research) in the direction of strengthening the development of export support scheme.

• Journal of Korea Game Society
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• v.11 no.1
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• pp.121-129
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• 2011

In an online-game, the various game service victimized cases are generated by the bots program or auto program. Particularly, the abnormal collection of the game money and item loses the inherent fun of a game. It reaches ultimately the definite bad effect to the game life cycle. This paper collects and analyzes the pattern of game behavior change for the bots detection method. By using the game activity changing information of the human and game activity changing information of the bots, the degree of resemblance was measured. It utilized in the bots detection method. In an experiment, by using the served online-game, the model of a user and bots were generated and similarity was distinguished. And the reasonable result was confirmed.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.59 no.2
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• pp.232-241
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• 2010

This paper describes the development of robust contingency analysis program for Korean Energy Management System. The important function of contingency analysis is to determine the bus/branch model for contingency, and to calculate the state of the power network based on the network model and topology output. In the proposed method, the bus/branch models for contingencies are determined exactly using a fast linked-list method based on the application common model database. To calculate the state of the power system included contingency, the full-decoupled powerflow approach, the partial powerflow method for contingencies and the proposed contingency screening algorithm are also used to contingency analysis. To verify the performance of the developed processor, we performed a file-based test using several structured input data and online test using the database which resides on memory. The results of these comprehensive tests showed that the developed processors can accurately calculate the power system contingency state from online data and can be applied to Korea Power Exchange system.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.207-208
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• 2019

제3차 영재교육진흥종합계획을 통하여 소외계층을 대상으로 한 영재교육의 활성화가 진행되었다. 이에 따라 전체 학생 중에서 영재교육의 대상자 수의 비율도 증가하였으며, 영재교육 대상자 중 소외계층의 비율도 증가하였다. 일반 영재학생과 다르게 소외계층 영재 학생은 경제적, 문화적, 지리적 어려움을 겪고 있으므로 다각적인 지원이 필요하다. 하지만 선행 연구에서는 소외계층의 중학생을 대상으로 한 교육 프로그램 개발연구가 부족한 것으로 나타났다. 따라서 본 연구에서는 소외계층 중학생을 위한 온라인 교육 프로그램을 개발하였다. 교육 프로그램은 총 20차시이며, 2015 개정 교육과정의 과학, 수학, 정보 교과의 교육 내용을 기반으로 주제를 추출하였다. 추출한 주제를 기반으로 기초-심화로 이루어진 온라인 교육 콘텐츠를 개발하였으며, 교과별 역량 개발을 위하여 탐구 과제를 구성하였다. 향후 연구에서는 본 연구에서 개발한 교육 프로그램을 소외계층 학생을 대상으로 운영하고, 프로그램의 만족도와 개선 방향을 도출하고자 한다. 또한, 교육 프로그램의 교육적 효과를 알아보기 위하여 사전, 사후 검사를 통하여 학생들의 변화를 관찰하고자 한다.

• Human Ecology Research
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• v.61 no.3
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• pp.475-492
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• 2023

This study investigated player responses to microtransactions in freemium Massively multiplayer online roleplaying games (MMORPG), specifically focusing on the game LostArk using English language review data. To this end, structural topic modeling was employed and the following six microtransaction-relevant topics were identified: microtransactions, developer issues, real money trade (RMT), random number generator (RNG) upgrade system, game content, and collectibles & adventure. The first four topics were classified as being "not recommended". However, the proportions of microtransaction-related topics were relatively lower than the other topics. Additionally, this study did not extract keywords related to unfairness and unethical issues in previous microtransaction research. The last two topics, game content, and collectibles & adventure were "recommended" topics, indicating positive functions of microtransactions such as enhancing the game experience by purchasing virtual items. Moreover, it was found that players who do not engage in microtransactions can still be satisfied through continuous game content updates. Additionally, an examination of the interaction effect between time and recommendation status revealed that while the frequency with which the six microtransaction-related topics were mentioned increased over time in the reviews, the ratio of recommendations to non-recommendations varied differently. This study contributes to game-related research by revealing players' authentic opinions on microtransactions in freemium MMORPGs, thereby providing practical implications for game companies.

• The Korean Journal of Health Service Management
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• v.13 no.3
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• pp.105-114
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• 2019

Objectives: This study aimed to provide a comprehensive analysis of the relationship between the service quality of the Korea Health Industry Development Institute (KHIDI), along with the utilization of and customer satisfaction with its export supporting program, and the export performance of Korean pharmaceutical companies. Methods: An online and offline survey was conducted on Korean pharmaceutical companies that have used the export supporting program provided by KHIDI. Data on the service quality of KHIDI, utilization of and customer satisfaction with the export supporting program, and company export performance were collected via survey. Results: Results indicated that systemizing and reliability service factors of the export supporting program have a significant impact on customer satisfaction, and customer satisfaction has a significant impact on utilization of the export supporting program. Furthermore, customer satisfaction and utilization of the program have a significant impact on company expectations regarding future export performance. Conclusions: As a result, service quality, utilization, and customer satisfaction were found to affect Korean pharmaceutical company's expectations regarding their future export performance. The results of this study can significantly impact the development of export supporting programs.

• The Journal of Korean Association of Computer Education
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• v.17 no.4
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• pp.45-57
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• 2014

Many studies on algorithm judging system which verifies the correctness and the time efficiency of your program have been underway recently, most of which are on an online judging system focused on programming contests. However this study is mainly about development and application of the judging system based on client-server. Especially, we designed to promote metacognition and motivation which are emphasized in CRESST model, and implemented the total system that consists of the problem, data set, validation program, and user service environments. We applied our system to elementary, middle, and high school students, and We noticed a significant difference of average score between the experimental and control group in posttest and concluded that the teaching method using our system gave the bigger positive effects on programming learning.

• Journal of KIISE:Software and Applications
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• v.26 no.12
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• pp.1531-1541
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• 1999

프로그래밍 언어의 의미를 정형적으로 표기하는 기법인 액션의미론을 기반으로 한 컴파일러 생성기는 프로그래밍언어의 액션의미구조가 주어지면 그 언어의 컴파일러를 자동으로 생성한다. 생성된 컴파일러는 먼저 원시 프로그램을 그에 상응하는 액션 프로그램으로 확장한 후, 목적 프로그램으로 컴파일 한다. 여기서 액션 프로그램은 일종의 중간코드로 쓰이므로, 효율적인 목적코드를 생성하기 위해서 중간코드의 성능향상이 필요하다. 본 논문에서는 액션 프로그램을 부분계산을 통해 효율적인 코드로 자동 변환해 주는 온라인 액션 부분계산기를 설계하고 구현한다. 선행 연구된 오프라인 방식에서 전역분석을 하지 않고는 불가능했던 요약캡슐의 몸통, 펼치기의 몸통에 대한 부분계산이 온라인 방법을 사용하면 가능함을 보이고, 명령형 액션의 부분계산도 추가적으로 수행할 수 있도록 확장한다. Abstract Action Semantics is a framework for formally defining the semantics of programming languages. Action semantics-directed compiler generators take an action semantics definition of a programming language and automatically generate a compiler of the language. The generated compiler first expands a source program into an action denotation of the program, and then compiles it to a target code. In these compiler-generation systems, it is important to statically process the expanded action denotation - used as an intermediate code - as much as possible so that the generated compiler can produce better target code. In this paper, we develop an automatic action-transformation method based on online partial evaluation. The previous off-line method was rather weak because it could not partially evaluate actions inside the body of abstraction and unfolding-action without performing separate global analysis. The proposed online method remedies the problem, thus naturally improves the quality of residual actions. Moreover, we also extend the method to partially evaluate imperative actions.

• Research in Community and Public Health Nursing
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• v.30 no.3
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• pp.295-306
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• 2019

Purpose: There has been a growing recognition that person-centered care enhances the quality of life of nursing home residents with dementia. This study was conducted to develop a person-centered dementia care online education program for direct care staff in long-term care facilities. Methods: Delphi method with expert group was used to validate contents. We developed 61 draft items based on literature review. Twenty experts participated in consecutive three round surveys including 5-point Likert scale questions and open-ended questions. Based on experts' opinions, the content validity ratio for content validity and the coefficient of variation for stability were calculated. Results: Three-round Delphi surveys and additional feedback from the expert panel established a consensus of core contents: 1) dementia (7 categories), 2) person-centered care (6 categories), 3) communication (8 categories), and 4) behavioral and psychological symptoms of dementia (6 categories). Specific sub-categories in each category were differentiated according to the job qualifications (65 sub-categories for registered nurses, 64 sub-categories for nursing aids, and 41 sub-categories for personal care workers). Conclusion: This delphi study identified person-centered dementia education curricula, in which the person-centered approach should be a key policy priority in Korean long-term care system. Now it is urgently needed to develop education programs utilizing online platforms that enable efficient and continuous learning for long-term care staff, which can contribute to behavior changes in the person-centered dementia care approach and improvement of care quality in long-term care facilities.